crypto/openssh/openbsd-compat/sha1.h

   1 /*      $OpenBSD: sha1.h,v 1.24 2012/12/05 23:19:57 deraadt Exp $       */
   2
   3 /*
   4  * SHA-1 in C
   5  * By Steve Reid <steve@edmweb.com>
   6  * 100% Public Domain
   7  */
   8
   9 #ifndef _SHA1_H
  10 #define _SHA1_H
  11
  12 #ifndef WITH_OPENSSL
  13
  14 #define SHA1_BLOCK_LENGTH               64
  15 #define SHA1_DIGEST_LENGTH              20
  16 #define SHA1_DIGEST_STRING_LENGTH       (SHA1_DIGEST_LENGTH * 2 + 1)
  17
  18 typedef struct {
  19     u_int32_t state[5];
  20     u_int64_t count;
  21     u_int8_t buffer[SHA1_BLOCK_LENGTH];
  22 } SHA1_CTX;
  23
  24 void SHA1Init(SHA1_CTX *);
  25 void SHA1Pad(SHA1_CTX *);
  26 void SHA1Transform(u_int32_t [5], const u_int8_t [SHA1_BLOCK_LENGTH])
  27         __attribute__((__bounded__(__minbytes__,1,5)))
  28         __attribute__((__bounded__(__minbytes__,2,SHA1_BLOCK_LENGTH)));
  29 void SHA1Update(SHA1_CTX *, const u_int8_t *, size_t)
  30         __attribute__((__bounded__(__string__,2,3)));
  31 void SHA1Final(u_int8_t [SHA1_DIGEST_LENGTH], SHA1_CTX *)
  32         __attribute__((__bounded__(__minbytes__,1,SHA1_DIGEST_LENGTH)));
  33 char *SHA1End(SHA1_CTX *, char *)
  34         __attribute__((__bounded__(__minbytes__,2,SHA1_DIGEST_STRING_LENGTH)));
  35 char *SHA1File(const char *, char *)
  36         __attribute__((__bounded__(__minbytes__,2,SHA1_DIGEST_STRING_LENGTH)));
  37 char *SHA1FileChunk(const char *, char *, off_t, off_t)
  38         __attribute__((__bounded__(__minbytes__,2,SHA1_DIGEST_STRING_LENGTH)));
  39 char *SHA1Data(const u_int8_t *, size_t, char *)
  40         __attribute__((__bounded__(__string__,1,2)))
  41         __attribute__((__bounded__(__minbytes__,3,SHA1_DIGEST_STRING_LENGTH)));
  42
  43 #define HTONDIGEST(x) do {                                              \
  44         x[0] = htonl(x[0]);                                             \
  45         x[1] = htonl(x[1]);                                             \
  46         x[2] = htonl(x[2]);                                             \
  47         x[3] = htonl(x[3]);                                             \
  48         x[4] = htonl(x[4]); } while (0)
  49
  50 #define NTOHDIGEST(x) do {                                              \
  51         x[0] = ntohl(x[0]);                                             \
  52         x[1] = ntohl(x[1]);                                             \
  53         x[2] = ntohl(x[2]);                                             \
  54         x[3] = ntohl(x[3]);                                             \
  55         x[4] = ntohl(x[4]); } while (0)
  56
  57 #endif /* !WITH_OPENSSL */
  58 #endif /* _SHA1_H */